Hydrochloric Acid → HCID 44554577, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 6-hydroxybenzofuran-3(2H)-one (0.50 g, 3.3 mmol) and 5-bromo-1H-indole-3-carboxaldehyde (0.90 g, 4.0 mmol) in ethanol (10 mL) was added with concentrated hydrochloric acid (1.0 mL), and the mixture was stirred at 75° C. for 2 hours. The reaction mixture was cooled to room temperature, and then the solid was collected by filtration, and washed with methanol to obtain (Z)-2-[(5-bromo-1H-indol-3-yl)methylene]-6-hydroxybenzofuran-3(2H)-one (1.1 g, 95%).

Provenance & Evidence